At One Click Purchasing, we are your reliable source for the NSN part 2520 manufactured by Simpson Electronics Inc. We carry a wide range of popular NSN items on our website, including Ammeter like part number 2520 which is listed with the NSN 6625004878039 for easy identification. If you are interested in 2520 item, then take the advantage of our online RFQ service, or peruse our website as you see fit to find other items of interest that you may wish to learn more about.